Plasmon and structure resonances in the scattering of light by a periodic chain of silver nanocylinders

In this paper, we study the scattering of the H-polarized plane wave by an infinite periodic chain of silver circular cylinders standing in free space. The scattering problem is reduced to a matrix equation with favourable features using the method of partial separation of variables. In the visible-light band, we demonstrate an interesting interaction of two types of resonances: the localized surface plasmons of the nanosize cylinders and a specific grating-type resonance near the wavelength equal to the chain period.